The production facilities of Stahlwerk Thyssen AG in Hagendingen were in the immediate proximnity of the ore deposits which August Thyssen had acquired in the German and French parts of Lorraine.
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In 1910 a new steel mill is built in Hagendingen / Lorraine, this time near to minette ore deposits rather than coal. The vertical company organization is expanded to Lorraine. Coal and coke are supplied to the Lorraine steelmaking operations from the Rhenish-Westphalian industrial area, and minette ore from Lorraine is transported back to the Ruhr for smelting. The Thyssen AG steel mill in Hagendingen starts production in 1912. At the end of the First World War the mill is expropriated by the French authorities.
Isometric view of the Stahlwerk Thyssen AG steel mill in Hagendingen with six blast furnaces, ca. 1914, the most advanced mill of its day.
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On a similar basis, August Thyssen builds a steel mill in Caen near the iron ore mines of Normandy.
